Rib-knitting machine.



R. w. SCOTT. RIB KNITTING MACHINE.

APILIOATION FILED AUG.17, 1906.

Patented Oct. 20, 1908.

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R. W. SCOTT.

RIB KNITTING MACHINE.

APPLICATION FILEDAUG. 17, 1906.

Patented Oct. 20, 1908.

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RIB KNITTING MAGHINB. APPLICATION FILED AUG. 17, 1906.

Patentd 00t. 20,1908.

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W/ TNESSES R. W. SCOTT. RIB KNITTING MACHINE.

APPLICATION FILED AUG. 17, 1906.

' Patented 0011.20, 1908.

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R. W; SCOTT; RIB KNITTING CHINE- (APPLICATION rum) mm. 17, 1906.

Patented 0e12.; 20, 1908.

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UNITED STATES PATENT QFFICE.

ROBERT W. SCOTT, ()13 LEEDS POINT, NEW JERSEY, ASSIGNOR OF ONE-HALF TO LOUIS N. D.

' WILLIAMS, "OF OGONTZ, PENNSYLVANIA;

RIB-KNITTING MACHINE Specification of Letters Patent.

Patented Oct. 20, 1908.

Application filed Augustin, 1906. Scrial'Nc. 331,015.

To all whom it may concern:

-Be it known that I, ROBERT W. Soorr, a

'citizen of the United States, residing in -,struct a machine for knitting ribbed fabric,

that a fleecing yarn can be lnte-rlaced with said fabric in asimple'and expeditious manv ner.

In the accompanying drawings :Figure l i is a view partly in side elevation and partly in section, of a rib knitting machine constructed in accordance with my present .111-

vention; Fig. 2 is a sectional plan view of the machine on the line (1-0,, Fig; 1; Fig. 3 is a plan or top view of aportion of the machine; ig. 4 is a view showing one-half of the cylinder cam box of the machine developed on a fiat plane; Fi 5 is a similar view of the other half of t e cylinder cam box; Fig. 6 is 1 a plan view of the yarn 'uides of the ma- 2 5 dime, and of the cams of t e dial cam plate; Fig. 7 .is a plan view, artly in section, of the fleecing yarn guide 0' the machine; Fig. 8 is a sectional .VIBW illustrating a modification I of the invention; Fig. 9 is a sectional view illustrating the apfplication of my invention to another type 0 machine; Fi inclusive, are views illustrating t e operation of the machine, and Fig. is an exaggerated 3 view of a piece of fabric produced upon the 5 2 So far as concerns the general construction of the rib knitting machine shown in Fi s. 1..

machine. 1 a

to 6, my invention involves no materia'departure from ordinary practice, except in the means employed for maintaining the needle .dial in stationary position, and for imparting rotating movement to the dial cam plate, the r invention com rising mainly the combination with a rib nitting machine of a fleecing yarn uide, and a stitch deflector as hereinafter escribed. I I

In Fi 1' of the drawin 's, 1 represents part of t e fixed table or be of the machine which constitutes a bearing for a rotating .gear wheel 2, the latter carrying the cylinder cam-box 3, and havingalso mounted upon it by means of posts 4 the arch 5, as is usual in machines of this type.

s. 10 to 1 4,

Secured to the fixed. vbed plate is the needle cylinder 6, which has vertical rooves for the guidance of the cylinder nee les 7, the latter being actuated by means of cams 9 to 21 inclusive, shown 1n Figs. 4 and 5, and operating inthe manner hereinafter set forth.

Mounted in the hub of the arch 5 is a tubular vertical spindle 22, to the lower end of. which is secured, by meansof a set screw 23,

the needle carrying'dial 24, the upper face of the latter being grooved, as shown, for the reception of the radially reciprocating dial needles 25, which are caused to reciprocate by means of cams 26 to 31 inclusive, shown in Fig. -6, these cams bein carried by the underside of a dial cam plate 32,'which is free to rotate around the spindle-22, and is provided with a projecting arm 33, having at its outer end an adjusting screw 34, which bears against one of the posts 4 of the arch,

so that, as the latter rotates with the drive wheel 2, corresponding rotation will be imparted to the dial camlate 32. Adjust ment of the dial cam-p ate and its cams around the axis of the spindle 22 is permifled or efi'ected b turning the screw 34 in one direction or t e other, the hub of the arm 33 being split and, provided with a clam ing bolt 35, whereby it is secured to the hu of the cam-plate as shown in Figs. 1 and 2 rise of the dial cam-plate on the s indle 22being prevented by means of a col ar 36, located above the hub of the arm 33, and secured to the spindle by means of a set screw 37.

Owing to the use of the rotating internal yarn guide and stitch deflector, hereinafter referred to, I cannot lock theneedle dial 24 to the needle cylinder 5, by means of engagging lugs on the inner side of the cylinder and underside of the dial, as usual, hence I am "compelled to-resort to other'means for preventing rotation of the dial. Various means for accomplishing this result may be employed, but in the present instance I have pro ided annular racks on tl needle cylinder and on the spindle 22, these-racks en-- gaging with spur wheels carried by a shaft hich is mounted in a bearing secured to,

and rotating with, the arch structureof the machine.

-The annular rack on the needle cylinder is represented at 40, and the annular rack carried by the spindle 22-is represented at 41, a spur wheel 42,. at the lower end of a vertical shaft 43 engaging with the r'ack40, and a similar spur wheel 44, at the upper end of said shaft 43 engaging with the rack 41. The shaft 43 is carried by a bearing 45 on a bracket 46, which is secured to one of the posts 4, as shown in- Figs. 1, 2 and 3, hence, as said bracket is carried around by the rotating arch structure, the pinions 42 and 44 are caused to rotate uniformly, and there can be no movement of the rack 41 indesplit hub 49, with suitable clamp screw and nut whereby it is secured to the yarn guide, this hub resting upon the upper end of the spindle 22 and thus serving for the proper support of the yarn guide in respect to said spindle.

Secured to the projecting lower end of the yarn guide 47 is a bent arm 50, whose outer end constitutes a combined yarn guide and stitch deflector, said outer end having a cam surface 51 (Fig. 7), and at the rear of the same a projecting finger 52, the outer face of which isgrooved, as at 53, to form a yarn guiding channel-which (.UllllIlUIllCdtCS at its forward end with a yarn passage 54, extend ing through the guide, said yarn passage being in line with a notch 55 in the vertical portion of the arm 50, so that a yarn passing through the tubular yarn guide 47 can be threaded through the notch 55, passage 54, and grooved channel 53, so as to be delivered from the end of the projecting finger 52 of the guide.

The yarn guide50 operates on the inside of the knitted tube depending from the cylinder and dial needles of the machine, and the cam-lace 51 01' said guide is located close to the underside of the dial 24, and. projects so far be ond the periphery of said dial, and so far a so beyond the cylinder needles 7, that, if said guide is caused to rotate with the dial cam-plate, it will deflect the stitches carried by the dial needles to such an extent that the yarn fed by it can be delivered be-- hind said stitches and in front of the cylinder needles 7, (see Fig. 10), the latter rising behind the projecting finger 52 of the guide,so that said arn can be properly laid in their hooks. ee Fig. 11). I

Rotative movement of the tubular yarn guide 47 in consonance with the dial camplate 32 and cylinder 3 is effected by contact of a screw 56 at the outer end of the arm 48 with a post 57, which is secured to and projects upwardly from one of the posts 4 of the machine, or from some other portion of the rotating arch structure, adjustment of said screw 5(3 providing for back and forth ad- I stitches.

jii'strnent of the guide 50, so that it may bear the proper relation to the cams of the cam box and dial cam-plate.

The machine which I have shown in the drawing is what is termed a two-feed ma chine, that is to say, the cylinder cam-box and dial canr'plate have two sets of knitting cams which cooperate with two knitting yarn guides, so as to form two courses of stitches on each rotation of the machine, although it should be understood that my invention is equally ap licable to a single feed machine, or to a madliine having more than two feeds, with their accompanying sets of cams. I

In Fig. 6, the two yarn guides are represented respectively at 60 andfil, said'yarn guides being suitably mounted u on the dial cam-plate and rotating therewiti in the dij rection of the arrow, Fig.'6, the knitting yarn being fed through an eye 62, in each yarn guide. At 26, 27 and 28, are represented respectively, the projecting cam, the guard cam, and the retracting cam of the dial cam- 1plate which operate in conjunction with the nitting yarn guide 60, and at 29, 30 and 31,

are re resented respectively the projecting cam, ,t e guard cam, and the retracting cam of the dial cam-plate which cooperate with the knitting yarn guide (31. The projecting cam structure, however, is formed so as to present a cam 63 considerably in advance of the cam 26, so as to provide for a projection of the dial needles so far in advance of the knitting point as to provide for the proper action of the am guide and stitch deflector 50, whereby t e stitches are pushed outward upon the dial needles in order to permit of the laying of the fleecing yarn behind them by said uide. essential, as the guide 50 may, if desired, push out the 'dia needles as Well as the One-half .oi the cylinder cam-box has the usual knitting cams, comprising a projecting cam 14, and an adjustable depressor cam 15, for operating the cylinder needles to receive the knitting yarn from the guide 60, and the other half of the cylinder has knitting camscomprising a lift cam 20, and an adjustable depressor cam 21, foreperating the needles to receive yarn from the knitting yarn guide 61, a lift and rest cam 16 and a guard cam 17 following the cams 14 and 15, and a lift and rest cam 18 and a nerd cam 19 following the cams 20 and 21.

n addition to these two sets of knitting-cams there are, in the cylinder cambox, a leveling cam 9 and a set of cams 10 and 11, the canr .this does not properly show their vprtical rewith the fabric without lation, as, in the machine, the said guides are further above the cams. The relation ofthe guides 54 and 62 to the dial cams is shown in The internal yarn guide 50 of the machine is intended for the control of the fleecing yarn x which is fed through the tubular yarn guide 47, and the cam 10 of the cylinder cam-box raises the cylinder needles behind and close to the end of the finger 52 of said internal yarn guide 50, so as to permit of the placing of the fleecing yarn in the hooks of said needles, as shown in Fig. 1]., after it has been placed behind the dial needle stitches which have been projected by the action of the camface 51 of said guide, as in Fig. 10. v The draft upon the fabric prevents the cylinder wale stitches preceding those inthe hooks of the cylinder needles from being pulled over said hooks when the dial stitches are projected as in Fig. 11.

The lift of the cam 11) is not suificient to cause the cylinder needles to slip their stitches back of the latches, and after the fleecing yarn has been laid in the hooks of these needles the latter are depressed by the action of the cam 11, so as to draw slack loops of fleec-' ing yarn of the required length to give the desired looped face fleecing purposes. (See Fig. 12.) The cylinder needles are then raised to the clearing point by the cam 14, thatis to say, they rise to such a point that both the knitting stitches I and the loops of fleecingyarn will be slipped back of the latches oi the needles, as shown in Fig. 13, and, when the needles are depressed by the cam 15, the loops of fabric yarn and the loops of fleecing yarn will be cast together from said needles, over the new loops of knitting yarn. (See Fig.- 14). As a result the fleecing-yarn will be.interlaced being knit into it, s of fleecing yarn will that is to say the .loo

loops of fabric yarn.

not be drawn thro'ugi (See Fig. 15.) 7'

As shown, I have provided for the introduction of the fleecing yarn in alternate courses only of the knitted web, but it will be evident that the same may be used in connection with each course, if desired, by providing'a proper equipment of cams 10 and 11 in ad.- vance of the knitting cams 20 and 21, and by duplicating the guide 59, and it will also be evident that by separating the cylinder needles, either in the plane of their reciprocation or in a plane transverse thereto the fleecing yarn can be fed in front of some of said needlesand behind the others, so that it will not be interlaced with every cylinder needle Wale of the fabric. Although convenient it is not necessary that the stitch deflector and fleecing yarn guide shall form part of ment of the machine, and if desired, thefleecing yarn guide and stitch deflector may be on the knit fabric for the same ele-,

' guides of a rib arranged adjacent to the inner side of the needle cylinder 6 instead of to the underside of the needle dial, there being a corresponding transposition in the movements of the cylinder and dial needles, so that the yarn will be laid underneath the cylinder needle stitches and on to of the dial needles and dial cam plate rotate, but my invention is of course equally applicable to a machine in which the reverse is true.

It is not always necessary in carr ing out my invention, to employ an interna fleecing yarn guide and stitch deflector, for instance I may, shownin Fig. 9, employ an external fleecing yarn guide 50 of a character similar to that shown and described in my Letters Patent #577,789, dated February 23,1897, this yarn guide acting upon the butts of the dial needles 25 and serving to project them into an annular needle dial 24, located outside of the main needle dial mounted upon the needle cylinder 6. The fleecing yarn guide 50 will, however, be modified, as compared with that of the machine of the revious patent, so as to project the dial nee les to a greater extent than before in order -to permit said fleecing yarn guide to lay its yarn in thehooks of the cylin der needles, and the cylinder cam-box \Vlll be provided with cams 9, 10 and 11, as described, for operating the cylinder needles to receive and draw loops of the fleecing yarn.

I claim 1. The combination of 'two sets of needles, knitting cams, and knitting yarn guide or knitting machine, with means for projecting the stitches carried by one set of needles and means for, feeding a fleecing 24 and suitably yarn behind said stitches and into engagement with the other set of needles.

2. The combination of the two sets of needles,'knitting cams, and knitting yarn guide or guides of a rib knitting machine, with means acting directly upon the stitches carried by one set of needles to displace them from their normal position and means for laying a fleecing yarn behind saidstitches and into engagement with the other set of needles.

3. The combination of the two sets of needles, knitting cams, and knitting yarn guide or guides of a rib knitting machine, with a fleecing yarn guide and a Stitch deflector operating on the inside of the machine.

4. The eombirmtion oi the. two sets of neel at 'nee lesend lay the dles, knitting cams, and knitting yarn guide I or guides, of a rib knitting nnteliine, with. a l fleecing ym'n guide and a stitch delleetorl operating on the inside of the inaehine, and l a tubular guide for conveying the fleecing f yarn from the outside to the inside of the nm- 5 chine. 5. The combination of the two sets or" nee" dles, knitting cams, and knitting ern guide 01' guides of a rib knitting machine, with an internal fleecing yarn guide having a deflect-- ing surface for acting upon the stitches upon one set of needles, and a finger for feeding the fleecing ym'n to the other set of needles. i 6. The eon'iloination of the needle cylinder and dial, and their needles, the cylinder cuinbox and dial cei'nplnte and theiicams, the knitting yzn'n guide or guides, and {111 inteunal fleecing yarn guide and stitch deflector, l operating to deflect the stitches on the dial fleecing yarn behind the l same and feed it to the cylinder needles. 7 The combination of a fixed needle cylinder, 51. needle dial, it rotating cylinder 0X,n dial earn plate, a knitting yarn guide .or guides, an internal fleecing yarn guide;

and stitch deflector, means for preventing F0 1 O1 guides of e rib knitting eoneeo tatien of the needle dial, and means for censing the dial earn plate to rotate with the eylindei' cam hex.

8. The combination of the two sets of needles, knitting cams, and knitting yarn guide machine, with DIGHDS for projecting the stitches carried by one set of needles, means for feeding a fleecing yarn behind said stitches and into engagement With the other set of needles, and means for looping said fleecing yarn.

9. The combination of the two sets of needle knitting cams, and knitting yarn guide t or guides oie rihltnitting machine, with 111H1S for projeeting the stitehes carried by one of needles, means for feeding a fleecingyei'n behind said stitches and into engageinent with the other set of needles, and.

means to actuate the the fleecing yarn.

In testimony whereof, I have signed my name to th 's specification, in the presence of Vng witnesses.

two suhscn ROBERT W. SCOTT.

letter needles to loop Witnesses:

:HAPJILTON D. TURNER, KATE A. BniinLn. 

